David and Doorstops

I may have mentioned once or twice that my grandson David is very entertaining. Last time he was over, he was amusing himself with the door stops.
He discovered them as a baby and used to crack up every time he flicked it. He found the sound hysterical!

Anyway, David decided to see if all the doorstops in our house sounded the same. He proceeded to locate every one and test it. They were NOT all the same, to his delight!
Who ever decided that kids need toys with all the bells and whistles (and numerous batteries) to have fun?